结果1 题目 ()2. What are the two kinds of plants? A. Flowering plants and fruits B. Non-flowering plants and fruits C. Threes and vegetables D. Flowering plants and non-flowering plants 相关知识点: 试题来源: 解析 2.D 反馈 收藏 ...
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Flowering plants, which are also known asAngiospermaeorMagnoliophytaare a varied family of land plants. They consist of 64 orders, 30,000 known species, and 416 families. Angiosperms are seed-producing plants. The term “angiosperm” indicates plants that have flowers and produce seeds enclosed w...
B.plants cannot grow without air C.there are many plants in the world D.we can not live without water【小题3】What can we infer(推断) from the passage? A.Of all living things animals are most important B.Spores are seeds C.All fruits of flowering plants have seeds D.Without plants...
(种子).The seeds are protected by the fruits.Some fruits have one seed,some have two,three or four,and some have many seeds.But a few fruits have no seeds at all.An example of a fruit without seeds is the banana fruit.Most non-flowering plants do not grow from seeds.They grow from...
Virtually all organisms have an internal biological clock that measures the time even without environmental cues. In most organisms including plants, the biological clock is poorly understood, but we know that the environmental cues, particularly light, can reset the clock. How do plants detect ...
【题目】 What do you do with an orchid(兰花)after its petals have fallen off? __ you're an expert on growing these plants, youmay find that they never _ for you again.Just like most things rare and beautiful, theydon't___forever. T hey all have their ownlife cycle. And it's ...
O Day neutral plants flower as soon as they have sufficiently developed but the flowering of short night and long night plants is dependent on the duration of continuous darkness. O Scientists do not yet know what chemical or combination of chemicals is responsible for the signal to flower, but...
We found out that the preferred plants for most bumblebee species are perennial and native plants, with violet/pink flowers with papilionaceous or bilabiate structure. We suggest that such plant species should be planted in ubran spaces in order to actively protect bumblebees. Moreover, it ...
)What do you do with anorchid(兰花) after its petals have fallen off? 1you're an expert on growing these plants, you may find thatthey never 2 for you again.Just like most things rare and beautiful, they don't3 forever. They all have their own life cycle. Andit's always a little...